Daily Practice - Higher Plus
17th January 1992
- 13d Pythagoras and Trigonometry3 marks
A cuboid measures 11 cm by 6 cm by 5 cm tall. Work out the angle between its longest internal diagonal and the base, to 1 decimal place.
- 2Conditional Probability3 marks
A bag holds 9 red and 5 blue counters. Two are taken without replacement. Given the first was red, what is the probability the second is blue?
- 3Histograms2 marks
On a histogram, a 4-wide bar and a 16-wide bar have the same frequency density of 2. How many more values are in the wider class?
- 4Surds3 marks
Rationalise the denominator of 30/sqrt(5), giving your answer in its simplest form.
- 5Inverse and Composite Functions3 marks
f(x) = 6x - 3 and g(x) = 4x - 6. Work out fg(0).
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